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Gre4nikov [31]
4 years ago
9

Sam’s teacher is trying to model the day/night cycle on Earth. One student holds a large yellow ball to represent the Sun. Anoth

er student holds a smaller brown ball to represent Earth. How should the balls be moved to model the day/night cycle on Earth?
Biology
2 answers:
Nina [5.8K]4 years ago
5 0

Answer:B

Explanation:

USATP, SPIN THE BROWN BALL ON IT'S AXIS WHILE WALKING AROUND THE YELLOW BALL IN AN OVAL PATH.

Orlov [11]4 years ago
4 0
Hello!

So, day and night are caused because the earth makes a full rotation on its axis once every 24 hours.

That way, have of Earth is facing the sun (it is morning on that side) and the other half isn't (which is why it is nighttime over there).

For example, if it's nighttime in Canada and America, it's morning in Pakistan and India. This is because Pakistan and India are facing the sun whilst Canada and America are not.

A N S W E R:

The balls should be moved so that half the Earth is facing the sun and the other half is not. This would be 24 hours. As for the sun, it is a gas, not a solid, so it doesn't rotate like one. However, that does not mean that it is not rotating to some extent.
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5 0
3 years ago
When plants undergo photosynthesis, they take in water and other nutrients from the soil and carbon dioxide from the air to prod
salantis [7]
B should be the answer
3 0
4 years ago
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WARRIOR [948]
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2 years ago
What contributes to cell membrane fluidity? Proteins and lipids exist as separate but loosely attached molecules that can move a
Charra [1.4K]

Answer:

Proteins and lipids exist as separate but loosely attached molecules that can move around

Explanation:

Cell membranes are mainly composed of lipids, proteins, and also carbohydrates. Phospholipids are the most abundant type of lipid and the main constituent of the cell membranes. Membrane proteins are divided into two types according to their interactions with the cell membrane: 1-integral (intrinsic) and peripheral (extrinsic) proteins. These peripheral proteins are loosely attached by ionic bonds or calcium bridges with the phosphate heads of the phospholipids; whereas integral membrane proteins contain side chains that interact with fatty acyl groups of the phospholipids. Cell membrane fluidity indicates how easily lipids (e.g., phospholipids and cholesterol) and proteins (e.g., intrinsic proteins) diffuse laterally in the cell membrane. This fluidity is affected by the amount of cholesterol, temperature, and the ratio of unsaturated to saturated fatty acids. Saturated fatty acids have no double bonds in the hydrocarbon chain, whereas unsaturated fatty acids have at least one double bond (these double bonds increase fluidity). Moreover, higher temperatures increase membrane fluidity, whereas cholesterol molecules function to regulate membrane fluidity: at high temperatures cholesterol molecules stabilize the membrane, whereas at low temperatures intercalate between phospholipids, thereby preventing them from clustering together.

6 0
3 years ago
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Ugo [173]

Answer:

The answer to your question is: C

Explanation:

A.) Plants digest sugars to make energy.  This option is incorrect, the process in which plants digest sugars to make energy is called cellular respiration.

B.) Plants use oxygen and glucose to make carbon dioxide.  This option is incorrect, photosynthesis doesn't make carbon dioxide, it use it to make sugar.  

C.) Plants use sunlight and carbon dioxide to make sugars.  This option is correct, photosynthesis is a process that use carbon dioxide to make sugars.  

D.) Plants use sunlight to make chlorophyll and chloroplasts. This option is incorrect, plants use sunlight in the photosynthesis process to make sugars, not to make chlorophyll and chloroplasts.

4 0
3 years ago
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